Solve the problem.The owner of a video store has determined that the profits P of the store are approximately given by  where x is the number of videos rented daily. Find the maximum profit to the nearest dollar.

A. $8450
B. $8517
C. $4225
D. $4292


Answer: D

Mathematics

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Solve the problem.A furniture manufacturer uses two types of fabric for a certain type of sofa. It is estimated that between 30 and 40 rolls of fabric A will be needed, and that the total number of rolls needed will be less than 50. Graph the possible number of rolls of fabric that are needed. 

A.

B.

C.

D.

Mathematics

Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the . y = , y = 3, x = 0

A. ?
B. 18?
C. ?
D. 9?

Mathematics

Solve the problem.A number increased from 25 to 34. Find the percent of increase.

A. 64% B. 9% C. 36% D. 26.5%

Mathematics

An amplifier produces an output of 30 volts when the input signal is 0.33 volt. Find the decibel voltage gain. ? Please enter your answer as a number without the units, rounded to the nearest integer.

Fill in the blank(s) with the appropriate word(s).

Mathematics